1. The problem statement, all variables and given/known data An ant weighs 5 mg and requires 0.5 mm of edge to "walk on water" with the aid of surface tension. How much edge is required for a human who weighs 50 kg? 2. Relevant equations 3. The attempt at a solution I'm assuming that the relationship between area and weight is linear in this case. Is this a correct assumption?? If so, then I know how to work the problem.